He was a knight of the Order of the Band, and Lord of Marchena, Bailén, Rota, Mairena del Alcor, Bornos and Oliva de la Frontera.
King Alfonso XI of Castile the Just (1311-1350) confirmed many of Pedro Ponce de León's privileges as a Castilian nobleman.
[2] Later, he accompanied King Alfonso XI in almost all the military expeditions he undertook, such as the lifting of the siege of Tarifa, and the Battle of Río Salado, fought in 1340, in which the troops of the Kingdom of Castile defeated the Muslims.
[3] On 8 August 1349 the king was in Seville where he confirmed the possession of Pedro Ponce de León in the town of Rota, for the numerous services rendered to the Crown.
[4] The same year, Pedro Ponce de León was present with the king at the fifth siege of Gibraltar, which began in 1349 and lasted until 1350.
At the siege of Gibraltar, Alfonso XI sold him the town of Bailén for one hundred and fifty thousand maravedis, recorded in a document drawn up on 26 December 1349.
[6] After his death, the corpse of Pedro Ponce de León was buried in the Monastery of San Agustín of Seville.